1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Loongson ipi interrupt header files 4 * 5 * Copyright (C) 2021 Loongson Technology Corporation Limited 6 */ 7 8 #ifndef HW_LOONGSON_IPI_COMMON_H 9 #define HW_LOONGSON_IPI_COMMON_H 10 11 #include "qom/object.h" 12 #include "hw/sysbus.h" 13 #include "exec/memattrs.h" 14 15 #define IPI_MBX_NUM 4 16 17 #define TYPE_LOONGSON_IPI_COMMON "loongson_ipi_common" 18 OBJECT_DECLARE_TYPE(LoongsonIPICommonState, 19 LoongsonIPICommonClass, LOONGSON_IPI_COMMON) 20 21 typedef struct IPICore { 22 LoongsonIPICommonState *ipi; 23 uint32_t status; 24 uint32_t en; 25 uint32_t set; 26 uint32_t clear; 27 /* 64bit buf divide into 2 32-bit buf */ 28 uint32_t buf[IPI_MBX_NUM * 2]; 29 qemu_irq irq; 30 uint64_t arch_id; 31 CPUState *cpu; 32 } IPICore; 33 34 struct LoongsonIPICommonState { 35 SysBusDevice parent_obj; 36 37 MemoryRegion ipi_iocsr_mem; 38 MemoryRegion ipi64_iocsr_mem; 39 uint32_t num_cpu; 40 IPICore *cpu; 41 }; 42 43 struct LoongsonIPICommonClass { 44 SysBusDeviceClass parent_class; 45 46 DeviceRealize parent_realize; 47 DeviceUnrealize parent_unrealize; 48 AddressSpace *(*get_iocsr_as)(CPUState *cpu); 49 int (*cpu_by_arch_id)(LoongsonIPICommonState *lics, int64_t id, 50 int *index, CPUState **pcs); 51 int (*pre_save)(void *opaque); 52 int (*post_load)(void *opaque, int version_id); 53 }; 54 55 MemTxResult loongson_ipi_core_readl(void *opaque, hwaddr addr, uint64_t *data, 56 unsigned size, MemTxAttrs attrs); 57 MemTxResult loongson_ipi_core_writel(void *opaque, hwaddr addr, uint64_t val, 58 unsigned size, MemTxAttrs attrs); 59 60 /* Mainy used by iocsr read and write */ 61 #define SMP_IPI_MAILBOX 0x1000ULL 62 63 #define CORE_STATUS_OFF 0x0 64 #define CORE_EN_OFF 0x4 65 #define CORE_SET_OFF 0x8 66 #define CORE_CLEAR_OFF 0xc 67 #define CORE_BUF_20 0x20 68 #define CORE_BUF_28 0x28 69 #define CORE_BUF_30 0x30 70 #define CORE_BUF_38 0x38 71 #define IOCSR_IPI_SEND 0x40 72 #define IOCSR_MAIL_SEND 0x48 73 #define IOCSR_ANY_SEND 0x158 74 75 #define MAIL_SEND_ADDR (SMP_IPI_MAILBOX + IOCSR_MAIL_SEND) 76 #define MAIL_SEND_OFFSET 0 77 #define ANY_SEND_OFFSET (IOCSR_ANY_SEND - IOCSR_MAIL_SEND) 78 79 #endif 80